AD7302BNZ

AD7302 is a dual, 8bit voltage out DAC that operates from a single +2.7V to +5.5V supply. Its on-chip precision output buffers allow the DAC outputs to swing rail to rail. It has a parallel microprocessor and DSP-compatible interface with high speed registers and double buffered interface logic. Data is loaded to the registers on the rising edge of active-low CS or active-low WR and the active-low A/B pin selects either DAC A or DAC B. Reference selection for this can be either an internal reference derived from the VDD or an external reference applied at the REFIN pin. Both DACs can be simultaneously updated using the asynchronous active-low LDAC input and can be cleared by using the asynchronous active-low CLR input. Typical applications are portable battery powered instruments, digital gain and offset adjustment, programmable voltage and current sources, programmable attenuators.

• Internal or external reference capability, high speed parallel interface
• Power-down capability, on-chip output buffer, rail-to-rail operation
• When powered down the DAC consumes less than 1µA at 25°C
• Relative accuracy is ±1LSB max (VDD=2.7V to 5.5V, CL=100pF, RL=10KV to VDD and GND)
• Gain error is ±1% FSR typ (VDD=2.7V to 5.5V, internal reference; CL=100pF, RL=10KV to VDD and GND)
• Slew rate is 7.5V/µs typ (VDD=2.7V to 5.5V, internal reference; CL=100pF, RL=10KV to VDD and GND)
• Short circuit current is 14mA typ (VDD=2.7V to 5.5V, internal reference; CL=100pF)
• Input current is ±10µA max (VDD=2.7V to 5.5V, internal reference; CL=100pF, RL=10KV to VDD and GND)
• 20-pin plastic DIP package
• Temperature rating range from -40°C to +105°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party